SN2 trigonal bipyramidal transition state

Geometric apex of Walden inversion. 3 H equatorial, Br/I axial along ±z.

Building Blocks

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Structure

Formula

CH₃BrI

Molecular weight

221.84 g/mol

Heavy atoms

3

Total atoms

6

Composition

C ×1 H ×3 Br ×1 I ×1

SMILES

[CH3](Br)I

IUPAC name

[CH3-Br...I]‡ (Walden inversion midpoint)